B01F 35/21
Measuring
B01F35/21 (Measuring) appears on 1,528 US grants and 1,878 published applications in this corpus.
Search patents in B01F- Granted patents
- 1,528
- Published applications
- 1,878
- Assignees
- 1,116
- Inventors
- 4,021
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 8 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 8 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 8 | 0 |
| 1991 | 5 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 13 | 0 |
| 1995 | 15 | 0 |
| 1996 | 18 | 0 |
| 1997 | 11 | 0 |
| 1998 | 15 | 0 |
| 1999 | 12 | 0 |
| 2000 | 18 | 0 |
| 2001 | 18 | 9 |
| 2002 | 24 | 35 |
| 2003 | 26 | 36 |
| 2004 | 29 | 43 |
| 2005 | 26 | 54 |
| 2006 | 20 | 37 |
| 2007 | 20 | 40 |
| 2008 | 32 | 32 |
| 2009 | 12 | 45 |
| 2010 | 26 | 39 |
| 2011 | 26 | 37 |
| 2012 | 25 | 40 |
| 2013 | 22 | 46 |
| 2014 | 29 | 39 |
| 2015 | 29 | 83 |
| 2016 | 41 | 98 |
| 2017 | 79 | 120 |
| 2018 | 71 | 108 |
| 2019 | 99 | 107 |
| 2020 | 92 | 130 |
| 2021 | 95 | 148 |
| 2022 | 90 | 135 |
| 2023 | 86 | 94 |
| 2024 | 133 | 120 |
| 2025 | 108 | 121 |
| 2026 | 51 | 82 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01F 35/211Of the operational parameters876
- B01F 35/213Of the properties of the mixtures276
- B01F 35/2132Concentration, ph, poh, p or oxygen-demand237
- B01F 35/212Of the driving system data202
- B01F 35/2134Density or solids or particle number80
- B01F 35/2133Electrical conductivity or dielectric constant of the mixture72
- B01F 35/2131Colour or luminescence71
- B01F 35/2136Viscosity70
All 10 subgroupsShow fewer
Recent patents
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- Integrated dispersion and quantification system for asphalt modification29 Sep 2026US 12,746,518 B1Prince Mohammad Bin Fahd University
- Method and system for forming a liquid mixture29 Sep 2026US 12,746,519 B2Legion Innovations and Technologies LLC
- Ultrasonic atomizing device22 Sep 2026US 12,741,251 B2TMEIC Corporation
- Improvements to fluent mixing machines8 Oct 2026US 2026/0305649 A1Cremmjoy Inc.
- Gas supply device8 Oct 2026US 2026/0307021 A1BMI TECH Co., LTD.
- Method for evaluating kneading state and kneader8 Oct 2026US 2026/0307026 A1Suzuka Engineering Co., Ltd.
- Controlling an apparatus for production of medical fluid for use in dialysis therapy1 Oct 2026US 2026/0295134 A1
- Liquid-sourdough manufacturing installation and method24 Sep 2026US 2026/0283163 A1Mauri Technology B.V.
Most cited
By later US patents
- Method for continuously mixing fluids517US 5,426,137 AHalliburton Company · 1995
- Apparatus and method for controlling sonic treatment366US 6,719,449 B1Covaris, Inc. · 2004
- Method and apparatus for acoustically controlling liquid solutions in microfluidic devices300US 6,948,843 B2Covaris, Inc. · 2005
- Dissolved oxygen control system for aquaculture249US 10,219,491 B2Pentair Water Pool and Spa, Inc. · 2019
- Parallel reactor with internal sensing193US 6,306,658 B1Symyx Technologies, Inc. · 2001